Brake for railway and road vehicles.



PATENT-ED JULY 21, 1908.

J. E. SGHUMAOHER.

BRAKE FOR RAILWAY AND ROAD VEHICLES.

APPLIOATION FILED MAY 6, 1907.

2 SHEETS-SHEET 1.

PATENTED JULY 21, 1908.

E. SGHUMAGHER.

No. 893,660. A J.

. BRAKE FORVRAILWAY AND ROAD VEHICLES.

APPLICATION FILED MAY 6. 1907.

2 SHEETS-SHEET 2.

a; earns" BRAKE FOR RAILWAY AND ROAD VEHICLES.

Specification of Letters Patent.

Patented July 21, 1908.

Application filed. May a, 1907. Serial No. 372,224..

To all whom it may concern:

Be it known that I, J AMES EDWARD SCI-IU- MAGHER, a subject of the King of Prussia, residing at 68 Vyner street, I-Iaxby Road, York, in the county of York, England, have invented new and useful Improvements in or Relating to Brakes for Railway and Road Vehicles, Gun-Carriages, Ammunition-Wagons, and the Like, .of which the following is a specification.

This invention relates to improvements in brakes which are applicable for use on railway rolling stock, road vehicles, such as car riages, cabs, drays, wagons, timber wagons,

, which are frequently termed in England Timber Cutts and the-like, gun carriages, ammunition wagons and the like, all of which are hereinafter termed and included in the term the vehicle.

The object of this invention is to provide means so that the brake can either be applied by hand or be automatically drawn out or brought into action when, say, the vehicle is going up a hill or incline, or on the level, and to be instantly thrown into action when it commences to descend, say, the hill or the incline. Means are also provided for securely locking the brake in or out of action by hand.

In the hereunto annexed drawings this in vention is shown applied to a timber wagon, but I wish it to be clearly understood that this is to be taken as an example only, as it may be as readily applied to any of the hereinbefore mentioned vehicles.

In the drawings :Figure 1. is aside elevation of timber wagon with a brake constructed according to this invention, and in which the brake is brought into operation by a thrusting action. Fig. 2. a plan of same looking at the top. Fig. 3. a plan of same looking at the underside. Fig. 4:. an enlarged part sectional elevation of a portion of the brake actuating mechanism. Fig. 5. an enlarged part sectional elevation of same.

-Fig. 6. an enlarged elevation of levers for applying the brake by hand. Fig. 7. an enlarged elevation showing the levers locked when the brake is applied. Fig. 8. an elevation of lever for throwing the brake entirely out of action. Fig. 9. an elevation of mechanism for operating the brake by a pulling action. Fig. 10. a plan of same.

Like parts in all the views are marked with similar letters of reference.

In Fig. 1. the front and rear wheels A, B, are shown in dotted lines in order to show the brake actuating mechanism more clearly.

O is the shaft of the vehicle E. F. the axles; D its under carriage; G the centerpole provided with holes 9 whereby the rear portion H may be adjusted nearer to and further from the under carriage D and retained in position by a bolt or pin it.

I, J, are detachable pins employed for keeping the timber in position which is laid on the top of the rear portion H and the front portion K. The front portion is attached by stay L to the center pole G. The center pole is also jointed at M to the undercarriage D.

N are the brake blocks attached to the cross piece O suspended from the center pole G by a casting P arranged to slide thereon.

To the undersurface of the center pole Gris carried in suitable bearings,fixed to the center pole,so as to slide freely, a drawbar Q. The drawbar is made in two widths, its rear end q being the narrowest, and also provided with tapering edges to form a vee slide as shown at Fig. 5. The drawbar is also connected by a link R to a double ended bar S, which, in plan is bifurcated. The bar S is carried in bearings U fixed to the under carriage D, and its bifurcated ends are attached to the bolt or pin T to which the shafts are also connected. The bar S is also provided with a boss 3 for receiving the attaching bolt 8 by which the bar S and one end of the link R are attached together. The opposite end of the link is ointed by a pin or screw 1" to the widest end of the drawbar Q. Fixed or ad justable stops may, if so desired, but not necessarily so, be provided on the under surface of the bar S and made to impinge against the ends of the bearings U when the drawbar Q is in its extreme outward position.

In order to provide for the varying osition of the rear wheels B and portion I the cross piece O to which the brake blocks N are fixed, is connected to the end (1 by the sliding block V from which a screw threaded pin WV pendently projects. On the pin WV a nut or hand wheel X is made to work for clamping or fixing the cross piece O and slide V to the drawbar.

To the rear portion H is fixed bearings Y in which is mounted a shaft Z. At a suitable distance from the inner end of the said shaft is mounted a lever 1 which is connected by a bar 2 with a bifurcated end 4 to the pin W and slide V and retained in position by the hand wheel X.

In order to actuate the brake from the front of the vehicle by means of a rod 3, on the outer end of shaft Z is mounted a second lever 5 with an end shaped as shown at Fig. 6, so as to engage and lock with a third and double ended lever 6 which is pivoted to the rear portion H. The shortest and largest end of lever 6 is shaped so as to form a cam 7 arranged to lock the brake blocks N in position as shown at Fig. 7. The upper and free end of lever 6 is attached to the rod 3 for en abling the lever to be operated by hand.

When it is desired to throw the brake blocks N entirely out of action, the lever 12, shaped as shown at Figs. 1 and 8, mounted upon the bolt T', is turned over by hand and its operative portion 13 is wedged between the shafts O and the under carriage D as shown at Fig. 8, thereby preventing any movement of the drawbar Q taking place. In its normal position the lever 12 rests upon the shafts C as at Fig. 1.

In the above described apparatus the brake blocks N are ap lied to the wheels B by what may be termed a thrusting action which is obtained either by the backing of the horse drawing the vehicle, or when the vehicle overruns the horse as in going down a hill, thereby causing the drawbar Q to move toward the rear of the vehicle and automatically apply the brake. The pulling action for drawing the vehicle is utilized, in this instance, for applying the brake. The brake is locked in the on position by hand by means of rod 3 and lever 6, and in the off position by lever 12. When it is desired to utilize the said pulling action for removing the brake blocks N from the periphery of wheels B, the said blocks and parts connected therewith are arranged at the rear of wheels B, and the drawbar Q and link R are connected to the bar S as follows :To the front portion K is fixed a bracket 8 to which is fulcrumed a slotted and double ended lever 9. To the lower end of lever 9 the link R is connected and the upper end of the lever is slotted to permit of a pin 10 carried in bearings 11 formed for its reception in or on the rear end of bar S. The inner end of the drawbar Q and link R are at a suitable distance below the center ole G so as to permit of the lever 9 working freely. The drawbar Q will also require to be curved or bent so as to bring its rear end to its proper working level. As the bar S draws the pin 10 forward, the slotted end of lever 9 is carried toward the front portion K and the link R and drawb ar Q moved rearwards, thereby moving the brake blocks clear of wheels B. 1 Should the vehicle overrun the horse the brake is V automatically applied as above described.

The action of the apparatus is as follows Thevarious parts of the apparatus having I over running the horse, the drawbar Q will be moved to the rear of the vehicle carrying with it the cross piece O and brake blocks N and pressing the latter tightly against the wheels B. Simultaneously with this movement and by their connection with the cross iece O the levers 1, 5, will have been moved by bar 2 into the position for the ends of levers 5 and 6 to lock together when the rod 3 is pulled by hand, thereby moving the lever 6 into the position shown at Fig. 7 as previ ously described for keeping the brake blocks N against the peripheries of the wheels B. When it is required to release the lever 5 and blocks N, the rod 3 is moved by hand in the opposite direction, thus changing the position of lever 6 to that shown at Fig. 6, and permitting the shaft Z to turn in its bearings for raising the lever 5, whenever the drawbar Q is drawn or moves toward the front of the vehicle. The same. action for moving the brake blocks N into contact with wheels B may be obtained by moving the rod 3 forward, thereby directly operating le ver 6 and parts connected therewith. The link R permits of the drawbar Q being actuated irrespective of the angle of the bar S, undercarriage D, and shafts O.

I claim:

1. In brake actuating mechanism for Vehicles, the combination of the wheels mounted upon axles, a sliding drawbar mounted in bearings on the undersurface of the vehicle between the wheels, a pendent bolt arranged to slide on the drawbar and to be adjustably fixed thereto by a hand wheel mounted upon the said bolt, a crosspiece having brake blocks fixed thereto, said crosspiece being mounted upon the travel with the draw ar, and the means for operating the drawbar as set forth.

2. In brake actuating mechanism for vehicles, the combination with body portion and rear wheels, of a sliding drawbar mounted in bearings under the body of the vehicle, a bifurcated bar connected to the drawbar by a link, shafts attached to the forward and bifurcated ends of the said bar, brake blocks mounted upon a crosspiece and adjustably suspended from the drawbar, and the means described for fixing the cross iece to the draw-bar so that the brake bloc s and crosspiece will move therewith, as set forth- 8. In brake actuating mechanism for vehicles, the combination of the body portion mounted upon wheels having a sliding drawbar attached thereto, a bifurcated sliding bar carried by bearings fixed to the undercarendent bolt so as to riage of the vehicle, and attached by a link to the said drawbar, shafts connected to the forward and bifurcated ends of said bar, a lever for arresting the movement of the drawbar, an adjustable slide mounted upon said drawbar and means for fining it inposition, a crossbar fixed to said slide and having brake blocks fixed to its outer ends, a shaft fixed to the rear portion of the vehicle and connected by a bar to the crosspiece and to a lever on said shaft having a second lever mounted on its outer end, adapted to engage with a cam lever fulcrumed to the rear portion of the vehicle, and-a rod for 0 erating the last named lever from the front 0 the vehicle as set forth.

4. In brake actuating mechanism for vehicles, the combination of the sliding drawbar carried in bearings on the undersurface of the vehicle, abifurcated bar sliding in the undercarriage, a pin carried by said bar, a slotted lever fulorumed to the front portion of the vehicle and interposed between the said sliding bar and drawbar, said lever engaging the pin at one end, and itsopposite end being connected by a link to the drawbar a crossbar having brake blocks fixed at its outer ends and means described for attaching the cross piece to the drawbar as set forth.

JAMES EDWARD SCHUMACHER.

WVitnesses:

WILLIAM SADLER, ANNIE PARK. 

